DOOM
Platform: Sega 32X
Region: USA
Media: Cartridge
Controller: Gamepad
Genre: Shooter, First Person
Gametype: Licensed
Release Year: 1994
Developer: SEGA
Publisher: SEGA
Players: 1
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The Union Aerospace Corporation has been experimenting with teleportation technology on Mars' moons Phobos and Deimos. After early successes, something goes wrong. It seems the scientists have opened a gateway straight to Hell.

Phobos base is overrun with demonic creatures, and the whole of Deimos simply vanishes. A squad of marines is sent to Phobos, but all except one are quickly slaughtered. It falls to the surviving marine to grab some guns and strike back at the demons.

Hints:

- Full Ammo -
(6 button pad required) Pause the game, and press A, C, Mode and Up simultaneously

- God Mode -
(6 button pad required) Pause anytime during play, and press X, Z, Mode and Up simultaneously.

- Invincibility -
Press X + Y + Mode + Up during gameplay.

- Unlock all Weapons -
Pause the game and press A, B, C, X, Y, and Z at the same time to unlock all weapons.

http://www.mobygames.com/game/sega-32x/doom